17 Articles found

Articles

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  • Kartotrak allows Dekra to justify undoubtely their conclusions

    Kartotrak allows Dekra to justify undoubtely their conclusions

    Problematics “Our work is to provide our clients with the elements of decision they need to prepare site management plans for future remediation. Before we decided to include geostatistical approach in our projects, we were used to produce ...

  • CEA LASE laboratory uses Kartotrak to map radionuclides difficult to measure

    CEA LASE laboratory uses Kartotrak to map radionuclides difficult to measure

    Problematics The autoradiography technique consists in depositing sensitive screens collecting the radiation on facility floors, ceilings or walls during different exposure times Screens are then scanned to produce 2D black and white tiff images ...

  • Dedicated geostatistics based library for reliable dose rate mapping in a mouse click

    Dedicated geostatistics based library for reliable dose rate mapping in a mouse click

    ISYmap is a French start-up that launched GLOBall (GeoLOcalized Ball) early 2016, a revolutionary system allowing remoted and fast dose rate measurement and mapping, easy and quick to set up by operators staying far from hazard area in safe ...

  • Isatis manages several million data sets

    Isatis manages several million data sets

    Through the years, Geovariances has always endeavored to improve Isatis performances to answer their client constraints related to the always increasing size of their data sets. Most of the algorithms in Isatis are thus optimized and parallelized to ...

  • White Paper: Soil Data Quality Control

    White Paper: Soil Data Quality Control

    Why it is essential during a contaminated soil study? Before starting an evaluation of the contamination leading to decision-making tools for site clean-up, it is essential to ensure data quality. Thus, based on solid and reliable foundations, ...

    Y. Desnoyers;C. Faucheux

  • Kartotrak.one, The Easy Route to Site Remediation

    Kartotrak.one, The Easy Route to Site Remediation

    Geovariances launches Kartotrak.one, an easy-to-use and fast application for thorough data quality control and accurate contamination mapping. Kartotrak.one is a light version of Kartotrak. The software gathers Kartotrak exploratory data analysis ...

  • Airparif uses Isatis to process 11 million+ mesh grids and generate daily air quality maps - Case Study

    Airparif uses Isatis to process 11 million+ mesh grids and generate daily air quality maps - Case Study

    Isatis has been part of Airparif data processing workflow for 10+ years. The software is used daily to gather data and map air pollution over Paris area. The facts Airparif is part of the French AASQA network (“Associations ...

  • White Paper:  Dose Rate Mapping

    White Paper: Dose Rate Mapping

    The objective of any serious mapping is to obtain a realistic and reliable image of the studied phenomenon. Concerning dose rate, maps are often derived from punctual measurements interpolated using deterministic methods. Sometimes, the choice of ...

    Y. Desnoyers

  • Success Story: IRSN intensively uses Kartotrak for generation of precise maps

    Success Story: IRSN intensively uses Kartotrak for generation of precise maps

    IRSN – the Institute for Radiological Protection and Nuclear Safety – is the French national public expert in nuclear and radiological hazards. IRSN uses Kartotrak weekly to produce maps of dose rates over the France.  The ...

    C. Debayle;C. Bleinès

  • Characterization Of A Deep Radiological Contamination: Integration Of Geostatistical Processing And Historical Data

    Characterization Of A Deep Radiological Contamination: Integration Of Geostatistical Processing And Historical Data

    Summary Emerging in the early 80’s, decommissioning is more than ever a major issue since hundreds of sites and facilities worldwide will end their operations over the next decades. Decontamination and remediation projects are all the more ...

    Y. Desnoyers (Geovariances), P. de Moura (CEA)

  • Industrial experience feedback of a geostatistical estimation of contaminated soil volumes

    Industrial experience feedback of a geostatistical estimation of contaminated soil volumes

    Abstract: Geostatistics meets a growing interest for the remediation forecast of potentially contaminated sites (both chemical/radiological): pollution mapping, contaminated volumes estimation, integration of auxiliary information, setup of ...

    N. Jeannée, C. Faucheux (Geovariances)

  • Geostatistical Methodology For Waste Optimization Of Contaminated Premises

    Geostatistical Methodology For Waste Optimization Of Contaminated Premises

    Summary At the end of process equipment dismantling, the complete decontamination of nuclear facilities requires the radiological assessment of residual activity levels of building structures. As stated by the IAEA: “Segregation and ...

    Y. Desnoyers (Geovariances), D. Dubot (CEA)

  • Radiological Evaluation of contaminated sites and soils VEgAS: an expertise and investigating vehicle

    Radiological Evaluation of contaminated sites and soils VEgAS: an expertise and investigating vehicle

    Summary 1- Fontenay-Aux-Roses CEA Clean-up methodology For the denuclearisation of the first French nuclear research centre (CEA), the centre of Fontenay-aux-Roses started developing in 1999 a clean-up methodology to rehabilitate places that have ...

    Marie LAVIELLE (CEA), Patrick DE MOURA (CEA), Julien ATTIOGBE (Geovariances), Patrick POITEVIN (TIB)

  • Soils Radiological Characterization under a Nuclear Facility

    Soils Radiological Characterization under a Nuclear Facility

    Abstract: Nowadays, nuclear industry is facing a crucial need in establishing radiological characterization for the appraisal and the monitoring of any remediation work. Regarding its experience in this domain, the French Atomic Energy Commission ...

    E. Aubonnet (GEOVARIANCES), D. Dubot (CEA)

  • Geostatistical Sampling Optimization and Waste Characterization of Contaminated Premises

    Geostatistical Sampling Optimization and Waste Characterization of Contaminated Premises

    Abstract This methodological study presents a geostatistical approach suitable for radiological evaluation in nuclear premises. By modelling the spatial continuity of activities, geostatistics provide sound methods to estimate and map radiological ...

    Y. Desnoyers (Geovariances), J.P. Chilès (MINES ParisTech, Centre of Geosciences), N. Jeannée (Geovariances), F. Lamadie (CEA), D. Dubot (CEA)

  • Automatic Ozone Mapping in France with ISATIS

    Automatic Ozone Mapping in France with ISATIS

    In France, air quality data are acquired by associations in charge of the air quality monitoring (Agences Agréées pour la Surveillance de la Qualité de l’Air - AASQA) These associations use the automatic procedures of ISATIS to daily update the ...

  • Cartography for air quality monitoring: the geostatistical approach

    Cartography for air quality monitoring: the geostatistical approach

    Being able to provide quick and accurate pollutant maps from readings at isolated measurement stations is becoming more important today in light of the European norms on air quality and the public’s demand to be informed. Commonly used algorithms ...

    M. Bobbia, F. Mietlicki, C. Roth, J. Deraisme